Sia reviews

3.6

66% would recommend to a friend

(565 total reviews)
avatar

Matthieu Courtecuisse

73% approve of CEO

45% positive business outlook

Sia has an employee rating of 3.6 out of 5 stars, based on 565 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Sia employee rating is in line with the average (within 1 standard deviation) for employers within the Management et conseil aux entreprises industry (3.7 stars).

Reviews by job title

565 reviews
1.0
Mar 24, 2026

Bad leadership overshadows everything

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

- Depending on the business unit, you can find supportive, friendly colleagues. There is a strong sense of camaraderie at the peer level, which makes day-to-day work more pleasant. - There is also a relatively good work-life balance overall. However, it is sometimes unclear whether this is the result of a genuine company culture that prioritizes balance, or rather a consequence of inconsistent planning and organization, which can lead to periods of under- or over-allocation. - Decent healthcare benefits

Cons

- Clear lack of structure and transparency, particularly regarding promotions, bonuses, and compensation adjustments. Processes are inconsistent, often unclear, and sometimes feel arbitrary. In several cases, expected salary adjustments were delayed, minimized, or only granted after persistent follow-up. Bonuses are not always proactively distributed and may require employees to explicitly chase them. - Favoritism is a concern, with recognition and advancement not always based on merit. The culture at higher levels can sometimes feel unprofessional, with blurred boundaries that create discomfort. - Long-term employees tend to feel undervalued over time. Many leave after around two years, often because they see a very limited progression. - Overall impression that the company tends to optimize costs at the expense of employees whenever possible, which affects trust and long-term engagement. - Leadership tolerates or fails to address inappropriate, unprofessional, or toxic behaviors. It can go unchecked for years, with action only taken very late, sometimes for reasons unrelated to the misconduct..

4.0
Mar 4, 2026
Recommend
CEO approval
Business Outlook

Pros

Progressive in thinking and planning. The company is always looking ahead and highly focused on finding the next solution

Cons

Somewhat similar to what is also good about the company. At times, the focus on AI as a solution for client projects, it often can lead to dilution of the specializations that made the individual BUs strong in the first place. In addition, Silo of BUs can make members of the BU feel disconnected from the larger company goals. Due to the nature of silos, behaviors, including implicit biases can take place and aren't addressed.

Viewing 7 - 9 of 565 Reviews

Glassdoor has 1,391 Sia reviews submitted anonymously by Sia employees. Read employee reviews and ratings on Glassdoor to decide if Sia is right for you.